because for any person to get inside a manhole, you would think it was shaped like a round circle.
The reason that manhole covers are round, and not square, is because a square cover could, when placed at the right angle, fall through the square hole in the ground. A circle, however, is the same diameter no matter where you measure it, and it cannot fir through a hole the same size and shape, no matter how hard anyone tried.
Manhole covers are round because that is the only shape that will not fall in on itself. Having a round cover with a lip, there is no way the cover can fall or be forced into the hole it covers.
A circular cover is the only shape that can fit the hole no matter which way you drop it, but can't possibly fall through the hole no matter which way you drop it.
There are various reasons that manholes are shaped like a circle. For example, it is much easier to dig a circular hole.
A round manhole cover will not fall through the hole, A square one will.
because for any person to get inside a manhole, you would think it was shaped like a round circle.
The reason that manhole covers are round, and not square, is because a square cover could, when placed at the right angle, fall through the square hole in the ground. A circle, however, is the same diameter no matter where you measure it, and it cannot fir through a hole the same size and shape, no matter how hard anyone tried.
Yes it will give
Go to the Manhole, which is marked by a large, red exclamation point. Examine it. Is the cover on, or off? If it is on, as it should be, click once, then again. If it is off, just click once. To get to the manhole, go to Varrock Circle, or the center of town. Find the fur trader's stall. Now, head north and est from there.
Manhole covers are round because that is the only shape that will not fall in on itself. Having a round cover with a lip, there is no way the cover can fall or be forced into the hole it covers.
Rim, on a manhole, is the elevation of the top of the cover on the manhole. In a roadway the rim will at be final grade, in grass they can be sumped, flush or stick up.
City requirements.
"Manhole covers" are simply spelled "manhole covers". The reason most of them are perfectly round is that a round cover cannot slip down into a hole that is even just slightly smaller than the cover (as can oblongs or squares).
Manhole covers are used for many things. Manhole covers are used to cover up holes in the ground where sewage can be found in order to protect people.
So it doesnt fall in, theres no way for a circle to fall into the hole, whereas a square manhole, when tilted at the right angle, could fall in and hurt the workers underneath.
with a crowbar =] or brolic hands =]